l-glutathione vs nac l-cysteine Cysteine l-cysteine vs glutathione NAC: Differences,

Lipotropic injections are generally not recommended during pregnancy or breastfeeding, for people with a known allergy to any component of the formulation (including B12/cobalt), for those with certain kidney or liver conditions, or for those with certain medical conditions

doi: 10.2337/DC21-2612 15 KrischerJPLynchKFSchatzDAIlonenJLernmarkHagopianWAet al

Shao, S

Your body excretes excess vitamin B-12 through urine

If you need an isotonic solution one that matches the body's natural salt balance or you're working with a compound where preservative-free saline is specifically recommended, saline is the appropriate choice